While the language analyzers can be used out of the box without any
configuration, most of them do allow you to control aspects of their
behavior, specifically:

Stem-word exclusion

Imagine, for instance, that users searching for the “World Health
Organization” are instead getting results for “organ health.” The reason
for this confusion is that both “organ” and “organization” are stemmed to
the same root word: organ. Often this isn’t a problem, but in this
particular collection of documents, this leads to confusing results. We would
like to prevent the words organization and organizations from being
stemmed.